Card Range To Study

41 Cards in this Set

the apparent change of position of an object due to a change in location

COPERNICUS

1. planets revolve around the sun
2. explained retrograde motion without use of epicycles

Lyman

electron jumps up or down from ground state

solar eclipse

Earth passes through the Moon's shadow

declination

angular distance north or south of the celestial equator

sidereal period

the amount of time it takes the Moon to circle the sky once and return to the same position among the stars

azimuth

angle measured from North along the horizon

lunar eclipse

moon passes through Earth's shadow

JAN

perihelion

ecliptic

the apparent path of the sun around the sky

Newtons 3 Laws

1. Law of Inertia
2. acceleration of an object is proportional to the net force acting on the object in the direction of hte force and is inversely proportional to the mass of the object
3. objects exert equal and opposite forces on one another

frequency

how frequently a vibration occurs

right ascension

angle meansured eastward along the celestial equator from the vernal equinox

ARISTOTLE

1. Earth center of the universe
2. Heavens are perfect

Electromagnetic Radiation

(travels at the speed of light)
changing electric and magnetic fields that travel through space and transfer energy from one place to another

the amount of time it takes the Moon to go through one complete cycle of phases

electron

negative charged particle

Newton's Law of Universal Gravitation

everything attracts everything else with a force that equals the product of their masses and is inversely proportional to the square of the distance between them.

tempterature

meausre of energy of motion of particles in a substance

GALILEO

1. moon not perfect
2. Milky Way consists of numerous stars
3. Jupiter has several moons
4. sun has sunspots that move
5. Venus experiences a complete set of phases

continuous spectra

heated solids, liquids, and dense gas

circumpolar constellations

constellation that never rise nor set (always observable)

doppler shift

light we see from an object moving away or towards us

wavelength

distance from peak to peak

Keplers 3 Laws

1. planet moves in eliptical orbit w/ sun as the center
2. line from sun to any planet sweeps out equal areas of space in equal time intervals
3. squares of the periods of the planets are proportional to the cubes of their average distances from the Sun